I have -1.75 in the rear, and that proved to be too negative. Both rear tires were hotter on the insides than the rest of the tire (outside and mid sections were even). That's with about 41-42 psi hot on BFGs. I will have that dialed back. I have -1.95 up front with the camber plates, and that worked well with even temps across both front tires.

Cool. I'm just happy the front does not need -3.5 like the E46. I could probably back off the rear a little, but it seems to be wearing fine. The rear does get a little squirrelly putting power down mid exit to exit...